Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992413 | Process for producing synthetic quartz glass | — | 2011-08-09 |
| 7975507 | Process for producing synthetic quartz glass and synthetic quartz glass for optical member | — | 2011-07-12 |
| 7491475 | Photomask substrate made of synthetic quartz glass and photomask | Shinya Kikugawa, Hitoshi Mishiro | 2009-02-17 |